Screen tensioning mechanism

ABSTRACT

The design is the visual features of the portion of the SCREEN TENSIONING MECHANISM, whether those features are features of one of shape, ornament, pattern or configuration, or are a combination of any of those features.

FIG. 1 is a front perspective view thereof;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front side view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective view thereof.

The ornamental design for a screen tensioning mechanism, as shown anddescribed.